Dough portioning and molding machine with kneading device connected thereto



May 29, 1934. F. BELLINGROTH 1,960,367

DOUGH PORTIONING AND MOLDING MACHINE WITH KNEADING DEVICE CONNECTED THERETO Filed March 25, 1931 4 Sheets-Sheet l May 29, 1934. F. BELLINGROTH DOUGH PORTIONING AND MOLDING MACHINE WITH KNEADING DEVICE CONNECTED THERE'I'O Filed March 25, 1931 4 Sheets-Sheet 2 May 29', 1934.

F. BELLINGROTH 1,960,367 DOUGH PORTIONING AND MOLDING MACHINE WITH KNEADING DEVICE CONNECTED THERE'IO Filed March 25, 1931 4 Shoets-$heet 3 May 29, 1934. F, BELLINGROTH 1,960,367

DOUGH PORTIONING AND MOLDING MACHINE WITH KNEADING DEVICE CONNECTED THERETO Filed March 25,1931 4 Sheets-Sheet 4 :25 section.

justing is effected by a hand Patented May 29, 1934 plural) STATES DOUGH PORTIONING MACHINE WITH AND MOLDING VICE KNEADING D E CONNECTED THERETO Friedrich Bellingroth, Runderotlr-Schnellenbach,

Germany.

Application March 25, 1931, Serial No.

, Claims. Machines for are known, in None of these portioning and shaping dough various types of construction. machines have, however, proved doughs and cient supply of lubricant. These disadvantages are tical manner according to the invention.

An embodiment of the invention is illustrated by way of example in the accompanying draw! I,

ings in which:

Fig. 1 shows the machine in elevation. Fig. 2 is a vertical section of Fig. 1. Fig. 3 is a section on line 3-3 of Fig. 1. 4 is a part elevation view showing the drum withthe cams thereon. Fig. 5 shows one of the inserts in longitudinal Fig. 6 is an elevation of one of the inserts taken at right angles to Fig. 5.

A shaft b is journaled in a frame a and carries a drum. This drum is formed of separate segments 0 and side plates 01, cz,the plate 02 forniinga toothed rim 0a. The gaps formed in the drum between the segments 0 are filled with inserts d with pistons d shaped according to connecting rod d: by fitting pieces d2. The pistons d can be easily removed by turning through 90 the connecting rod d: which is provided with a slide bar I on each end when the fitting pieces (12 which have an aperture at one end can be shifted over the flattened portions (14 and the pistons removed. The piston rods d3 slide at bothends in square section guides e of the side plates 01 and 0: respectively and are fixed by screws tothe slide bars f, on which guire rollers J: are mounted. These guide rollers I: run over guides. A dough adjusting cam g regulates the quantity supplied to the chambers. The adwheel 01 through the intermediary 01' a worm in. This cam is oscillatably mounted so that a perfect feeding without pressing of the dough, accommodated in the portioning chamber, to the kneading plates 0 is ensured according to the size of the inserted with the circumference of the drum.

The cam g is exchangeably amounted on the frame a in order to adapt the size 01' the dough chambers, that is their depth to the dough mass to be worked. The rollers finally run from this cam g on to the last cam g which like- 76 ceases to-act and the rollers and consequently the piston connected thereto can move into their outer initial position by gravity, if necessary assisted by the above mentioned cam 9 In the case of large loaves, the cam g is replaced by a smaller cam. g is removed so that the rollers descend with the piston into the chamber when the drum is and eject the bread dough.

The drum is rotated by means of a worm rim around its circumference engaging with worm n keyed on a shaft k1 driven by themotor k.

Afurther development of the invention can be best explained by describing the operation:

The hopper h is fixed on the machine frame a by means of brackets hl arranged one on each side. The lower portion of the hopper can be folded down on a hinge hs. For this purpose a cliplike ring 714 is provided and to remove the ring in order to fold down the hopper part he.

In the case of particularly tough doughs the hopper it comprises further a coreless dough worm i journaled by means of a ring 13 on the stationary hopper h and designed to press the dough lightly downwards, an excessively strong pressure being avoided in that the worm is made hollow. The worm 1' serves for feeding the dough to the drum, and, when pressure centres arise in the exchangeable hopper part h, these are effectively cut out in that the dough can escape through the hollow middle portion of the worm without being subjected to downward pressure.

The drive is derived from the common driving motor k through the intermediary of a shaft k1, a pair of gear wheels I and a pinion 11 on to the toothed rim [2 rigidly mounted on the worm i.

An endless band ha is also arranged in the hopper part it: and rotated in clockwise direction by means of the shaft in or the shaft b.-

The transmission is not shown in the drawings as it is behind the machine and therefore invisible. The dough is conveyed by the endless band ha in upward direction out of the lower part h: of the hopper to the cutting off tongue and the excess dough which can no longer enter the dough chambers of the drum is conveyed over the upper end of the band. The band is moreover adjustable in the filling channel towards the cutting off tongue m, so that thereby -a simple regulation of the dough pressure is possible, which pressure is readable on a pressure gauge m1 mounted at a conspicuous point; The tongue m projects into the inner space of the exchangeable hopper part 'ha and is made in one piece therewith. It may be slightly tapered so thatit presents an acute angle in the direction towards the dough in the hopper part and bears, with its surface conforming to the shape of the casing of the drum, against same.

When a sufficient quantity of dough has been in the movement filled into the dough chambers by this arrangement and-by the rotation of the dough drum, and the excess dough is held back in the dough hopper by the preferably heated cutting off tongue m, the portions of dough come within the working range of the kneading device. This device consists preferably of heated plateso, heated for example by an electric resistance, all arranged on a kneading beam or. The dough in the measuring pockets is brought into contact with .the plates 0 in known manner by cam races. The cam races act on the guide rollers f2 and the connecting rod d3 influences the piston d through the intermediary of the slide bars 1 in such a manner the working of'the dough is to' commence,the doughis fed to the kneading device or plates 0. A movement is communicated to the kneading beam 01, moved by cams 02 which are preferably mutually .displaced, which is similar to the movement of a hand when kneading. The cams on are also driven from the motor k through the intermediary of a pair of worm wheels 16:, a pair of bevel'wheels lea and rope pulleys m, p: and m; The kneading device is connected by lateral stays as with the shaft 1) and oscillatq able thereon. The elements q,-q and q serve for operating and disengaging the kneading .device. The ratchet wheel q is keyed on the shaft 1) thus participating in its rotation and actuates along the pawl q which is oscillatable on the lateral stays o of the kneading device and causes the entire kneading device to rotate when the pawl q is in engagementwith the ratchet wheel a, until the other free end q of this pawl q comes into contact with an abutment q rigidly mounted on the machine frame and is thereby disengaged from theratchet wheel q. When the kneading device has participated of the drum and during .this movement the arm q of the pawl q'has come into contact with the abutment q as above described, the free arm q abutment q so that the entire kneading device 'is subjected to the action of a spring 1'. This is-the oscillating movement .of the device for ment and returns the to conduct into the that at the points, at which said pistons to shape is oscillated by this kneading the dough. A projection omthe hub of the lateral stay 0a partioipatesin this oscillating movement and is hingedly connected to a bolt 14 guided-in a pivot pin n. A spring 1' is arranged on the outer end of the bolt n and is put under tension by this oscillating movekneading device into its initial position as soon as the pawl q disengages from the ratchet wheel q, a counter spring 11 on the other end of the bolt 1'4 cushioning the returning movement of the kneading device.

The kneaded dough wares are gripped by a I conveyor band s, when the drum is in the lowest position, they can be easily removed by a depositing arm s1. The, conveyor band s is preferably pulled along in horizontal direction up to the periphery of .the drum.,

The lubricant kneading is supplied by an oil pump t driven by a cam disc u keyed onshaft b. The lubricant is sucked through a conduit t1 and forced by means of the pump 1; through a conduit it: into a fitted piece 0 in the bored portion of shaft b. A conduit 01 connects the fitted piece 1:. with the portionizer chambers in which bores v:

absolutely necessary for theallow the lubricant to finely distribute over the boundary faces of the portionizer chambers. The fitted piece 1: is rigidly connected to the lubricating conduit and fitted in a recess in the shaft b. It does not rotate but the shaft rotates around this fitted piece 0 with the complementary connection in the conduit for the lubricant. The machine shaft 1) has a slot in, which serves drum heat which is produced for example by a heating element in the interior of the hollow shaft b into the drum. Thus, in the case ofbadly heated baking rooms, the heat is preserved in the dough in the portionizer chambers. I I v I claim:- 1

1. A dough portioning and molding machine, comprising in combination with a machine frame, a shaft iournalled in said frame, a drum formed of segments and of two' plates mounted on said shaft, a hopper on one side of said frame adapted to supply the dough to said drum, ex-

changeable pistons in said drum adapted to ratchet wheel.

2. A dough portioning and molding machine as specified in claim 1, tion with the drum composed of spaced segments and the pistons, insert pieces in the gaps between said segments, adapted to cooperate with the dough portions, a common piston rod having flattened portions one for each piston, and a fitted piece on the inner, end of each piston adapted to detachably engage over the'corresponding flattened portion of said common piston rod.

3. A dough portioning and molding machine, as'specified in claim' 1, comprising in combination with the machine frame the shaft bored over a certain portion of its length and the device consisting of heated comprising in combinadough portionizer chambers, a pump for lubricant fixed on said machine frame, a fitted piece in said bored shaft adapted to receive the lubricant from said pump, and an oil conduit communicating with said fitted piece and having said in said lower hopper part adapted to coact with said worm to exert pressure on the dough, rolls for moving said conveyor band, a cutting tongue in said lower hopper part adapted to cut oil? the quantity of dough necessary for working and hold back any excess quantity thereof, means for adjusting said conveyor band with regard to said cutting tongue in order to regulate the dough pressure, and a pressure gauge on said lower hopper part adapted to indicate the pressure exerted on the dough in said hopper.

5. A dough portioning and molding machine, as specified in claim 1, comprising in combination with the shaft, the dough drum and the filling hopper, a worm in said hopper adapted I to feed the dough to said drum, a kneading device on said shaft adapted to knead the dough in said drum, a pump for feeding lubricant to said dough drum, and an electric motor adapted to drive all these elements.

FRIEDRICH BELLINGROTH. 

